George a



G. A. DIEDEL.

(No Model.)

ANTI NERVOUS ATTACHMENT FOR PEN HOLDERS OR PENGI'LS; No. 266,442;Patented Oct. 24,1882

Ml w WITNESSES: INVENTOR mwfmmw .BY AWL 4 ATTORNEYS N. PETERS. Pmwmm mmr. Washington. ac.

Nrra States 'ATENT rates.

GEORGE A. DIEDEL, OF NEW YORK, N. Y., ASSIGNOR TO 'EBERHARD FABER, OFSAME PLACE.

ANTI-NERVOUS ATTACHMENT FOR PEN-HOLDERS OR PENCILS.

SPECIFICATION forming part of Letters Patent No. 266,4 1? dated October24, R82.

Application filed March 21, 1882.

To all whom it may concern Be it known that I, GEORGE A. DIEDEL, acitizen of the United States, residing at New York, in the countyandState of New York,

have invented new and useful Improvements in Anti-Nervous Attachmentsfor Pen-Holders or Pencils, .of which the following is a specification.

'1heobjectot'thisinventionisto providenovel lo and eflieientanti-nervous sheaths, capable of being slipped upon pen-holders orpencils ot varying size and shape, to present a series of yieldingindependent flat bearings for the tingers. V 1 To this end my inventionconsists in an attachable and detachable sheath, composed of alongitudinally-split tube of rigid materia1 such as sheet metalwhic'n isof triangular or other polygonal form in crosssection, and a seamlesstube of soft rubber, which is slipped or passed over the rigid tube, andby the latter made to assume and retain a triangular or other polygonalform in cross-section, corresponding to the polygonal form of this rigidtube, thereby producing a series of separate and independent flatyielding bearings for the lingers, the anti-nervous sheath soconstructed being adapted to he slipped upon pen-holders or pencils ofvarying size and shape, the split 0 tube accommodating itself to the penholder or pencil, and, itexpanded, serving to correspondingly expand thesoft-rubber tube or covering. In the aecompanying drawings, Figure 1represents the improved anti-nervous sheath applied to a pen-holder, andFig. 2 a cross sectional view of the sheath detached.

Referring to the drawings, the letter A iiidicates a pen-holder, whichmay be of any ordinary or usual construction, and B the improvedanti-nervous sheath.

in constructing this sheath I employ a strip of sheet metal bent intotubular form, of triangular or other polygonal shape in cross-section,with the longitudinal edges disconnected, 5 so as to constitute what Iterm a longitudinally-split tube, B. This tube is sufficiently elasticto perniitit to expand and contract transversely, whereby it is capableof being (No model.)

slipped or passed over a pen-holder or pencil of any usual form andconstruction.

Theanti-nervous material consists ofa seamless tube of soft rubber,which is passed over the split tube, and by the latter caused to assumea triangular or other polygonal forrn ,corresponding to thecross-sectional polygonal shape of said split tube. By this means thesheath is provided with independent or separate flat fingerbearings U GO, which are capable ot'yielding to the pressure of the fingers, and thewhole constitutes a very efficient and desirable anti-nervousattachment, which can be applied to pen-holders of varying size.

The polygonal form and splitting of the interior tube, B, is anessential tenure of theinvention, in that it serves to impart thedesired independent fla-t bearings to the soft rubber covering, andfurther permits the attachment to be applied to pen-holders and pencilsof vary ing size.

Pen-holders heretofore have been provided with cylindrical sot't-rubbersheaths to provide yielding bearings for the fingers. They have alsobeen formed with separate or independent unyielding bearings for thelingers. Further, they have been provided with tubes of metal,triangular in cross-section, and with attached :ylinders of metalcovered with anti nervous material. Such, however, do not constitute myinvention, and are not claimed by me.

Having thus described my invention, what I claim is- The combination ofthe longitiulinally-split tube B, of triangular or other polygonal formin cross-section, with the exteiior tubes of anti-nervous materialpassed over the split 8 tube and by the latter made to present a se riesof yielding tiat linger-beatings 0, substantially as described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two sub- 0 scribing witnesses.

GEORGE A. DIEDEL. '[L.s.|

TVitnesses:

J. VAN SANTVOORD, E. F. KASTENHUBER.

